Trying a new diet

It will take about 6 months...but u will b skinny fat. Increase ur cals to 1800-2000, lose 2 lbs a week...build some muscle and get hot.

No, it is not safe. You could easily lose weight in a healthier fashion eating 2000 calories per day. not only are you likely to damage your metabolism but your testosterone production, thyroid output, and leptin levels will plummet.

this. I have lost 117lbs and have pretty much always eaten over 1200 calories.

no..increase to 2000. (that's your net intake btw...so you'd eat more on workout days...2500)

If I am on a 1200 calorie a day diet and exercise 4 times a week burning a average of 500 calories
How long will it take to lose 75 lbs? I am 28 male 6 ft 280 lbs. I played football and worked out until about three years ago when I quit. Now I want to get back in shape. Is this a safe diet and how long will it take me. That would be 500 calories on average per workout.

Your basal metabolic rate is roughly 2500 you should never be netting under that, you are currently netting under 700 cals a day! If you eat too low you will lose muscle mass which will make you flabbier and reduce your metabolism, you won't have enough nutrients to keep your body healthy, you can't properly repair and refuel, you risk injury and overtraining.

I assume those who said 2000 didn't bother to do a calculation and just took an average male calorie intake but you are taller and broader than average. You should be looking to lose one to two pounds a week, more tends to be muscle and water not fat.